4–36
Maintenance and Service Guide
Removal and replacement procedures
Power button board
Before removing the power button board and cable, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then
unplugging the AC adapter from the computer.
4. Remove the battery (see
“Battery” on page 4-7
).
5. Remove the following components:
a. Switch cover (see
“Switch cover” on page 4-8
)
b. Keyboard (see
“Keyboard” on page 4-9
)
c. Optical drive (see
“Optical drive” on page 4-13
)
d. Speakers (see
“Speakers” on page 4-15
)
e. Palm rest (see
“Palm rest” on page 4-16
)
f. Solid-state module (see
“Solid-state module” on page 4-20
)
g. Top cover (see
“Top cover” on page 4-22
)
Remove the power button board and cable:
1. Detach the power button board from the base enclosure. The power button board is attached to the base
enclosure with double-sided tape.
2. Remove the power button board and cable.
Reverse this procedure to install the power button board and cable.
Description
Spare part
number
Power button board (includes cable)
574514-001
